用c#解析MS Word生成的XML文件

所以我有一个客户(这只能来自政府)，他有一堆MS Word文档，他们想要进入一个数据库，缺乏人工输入，我觉得把它们转换成XML，并使用实用程序解析它们将是最好的行动方案。

我有一个实用程序来做这个使用代码在这里找到stackoverflow:

Microsoft.Office.Interop.Word.Application word = new Microsoft.Office.Interop.Word.Application();
object oMissing = System.Reflection.Missing.Value;
DirectoryInfo dirInfo = new DirectoryInfo(Server.MapPath("''testfiles"));
FileInfo[] wordFiles = dirInfo.GetFiles("*.doc");
word.Visible = false;
word.ScreenUpdating = false;
XmlDocument xmlDoc = new XmlDocument();
foreach(FileInfo wordFile in wordFiles)
{
    Object filename = (Object)wordFile.FullName;
    Document doc = word.Documents.Open(ref filename, ref oMissing,
         ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
         ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
         ref oMissing, ref oMissing, ref oMissing, ref oMissing);
    doc.Activate();
    object outputFileName = wordFile.FullName.Replace(".doc", ".xml");
    object fileFormat = WdSaveFormat.wdFormatXML;
    doc.SaveAs(ref outputFileName, ref fileFormat, ref oMissing,
         ref oMissing, ref oMissing, ref oMissing, ref oMissing,
         ref oMissing, ref oMissing, ref oMissing, ref oMissing,
         ref oMissing, ref oMissing, ref oMissing, ref oMissing);
    object saveChanges = WdSaveOptions.wdDoNotSaveChanges;
    ((_Document)doc).Close(ref saveChanges, ref oMissing, ref oMissing);
    doc = null;
    xmlDoc.Load(outputFileName.ToString());
    XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDoc.NameTable);
    nsmgr.AddNamespace("w", "http://schemas.microsoft.com/office/word/2003/wordml");
    XmlNodeList node = xmlDoc.SelectNodes("//w:document/descendant::w:t|//w:document/descendant::w:p|//w:document/descendant::w:tab", nsmgr);
}
((_Application)word).Quit(ref oMissing, ref oMissing, ref oMissing);
word = null;

现在，我的XML文件看起来像这样:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<?mso-application progid="Word.Document"?>
<w:wordDocument xmlns:aml="http://schemas.microsoft.com/aml/2001/core" 
            xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" 
            xmlns:ve="http://schemas.openxmlformats.org/markup-compatibility/2006" 
            xmlns:o="urn:schemas-microsoft-com:office:office" 
            xmlns:v="urn:schemas-microsoft-com:vml" 
            xmlns:w10="urn:schemas-microsoft-com:office:word" 
            xmlns:w="http://schemas.microsoft.com/office/word/2003/wordml" 
            xmlns:wx="http://schemas.microsoft.com/office/word/2003/auxHint" 
            xmlns:wsp="http://schemas.microsoft.com/office/word/2003/wordml/sp2" 
            xmlns:sl="http://schemas.microsoft.com/schemaLibrary/2003/core" 
            w:macrosPresent="no" 
            w:embeddedObjPresent="no" 
            w:ocxPresent="no" 
            xml:space="preserve">
<w:ignoreSubtree w:val="http://schemas.microsoft.com/office/word/2003/wordml/sp2"/>
<o:DocumentProperties>
  ...
</o:DocumentProperties>
<w:fonts>
  ...
</w:fonts>
<w:lists>
  ...
</w:lists>
<w:styles>
  ...
</w:styles>
<w:shapeDefaults>...</w:shapeDefaults>
<w:docPr>...</w:docPr>
<w:body>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775">
    <w:pPr>
      <w:tabs>
        <w:tab w:val="left" w:pos="3312"/>
        <w:tab w:val="left" w:pos="4032"/>
        <w:tab w:val="left" w:pos="5616"/>
      </w:tabs><w:ind w:right="-576"/>
    </w:pPr>
  </w:p>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775">
    <w:pPr>
      <w:jc w:val="center"/>
      <w:rPr>
        <w:b/>
      </w:rPr>
    </w:pPr>
    <w:r>
      <w:rPr>
        <w:b/>
      </w:rPr>
      <w:t>blah blah blach this is sample text</w:t>
    </w:r>
  </w:p>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775">
    <w:pPr>
      <w:jc w:val="center"/>
    </w:pPr>
    <w:r>
      <w:rPr>
        <w:b/>
      </w:rPr>
      <w:t>More sample text</w:t>
    </w:r>
  </w:p>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775"/>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775"/>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775"/>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775"/>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775">
    <w:r>
      <w:t>Sample Header</w:t>
    </w:r>
  </w:p>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775"/>
  <w:p wsp:rsidR="00B01775" wsp:rsidRDefault="00B01775">
    <w:pPr>
      <w:pStyle w:val="BodyText"/>
    </w:pPr>
    <w:r>
      <w:rPr>
        <w:snapToGrid w:val="off"/>
      </w:rPr>
      <w:t>Sample Body text.......</w:t>
    </w:r>
  </w:p>
 </w:body>
</w:wordDocument>

我不是专业人士，但我认为我在这里通过正确声明命名空间管理器来遵循法律的字母，那么为什么我会在我试图选择的节点上得到null返回呢?

XmlNodeList node = xmlDoc.SelectNodes("//w:document/descendant::w:t|//w:document/descendant::w:p|//w:document/descendant::w:tab", nsmgr);

我错过了什么吗?

XmlNodeList node = xmlDoc.SelectNodes("//w:wordDocument/descendant::w:t|//w:wordDocument/descendant::w:p|//w:wordDocument/descendant::w:tab", nsmgr);